I've never drawn a parallel between those two things, as I've always thought of the commerce clause as limiting freedoms, whereas I've thought of the Schengen Zone as guaranteeing them. Interested to hear how they're the same thing with a different name.

My guess is you mean that the commerce clause prevents states from prohibiting travel between states?

I've never drawn a parallel between those two things, as I've always thought of the commerce clause as limiting freedoms, whereas I've thought of the Schengen Zone as guaranteeing them. Interested to hear how they're the same thing with a different name.